Linear actuator systems for gate valves
Linear actuator systems for gate valves
Do you need an actuator system for linear acting valves? We supply several linear actuators for gate valves, among other things. Our Lohse actuator systems are modular, which means that all valves can use the same actuator system. These actuators can also be used on similar gate valves. The actuators are easy to interchange, even after delivery.
Handwheel drives with nonrising spindle (HNS)
The handwheel transmission with non-rising spindle (type -Hns) is a handwheel for which the spindle does not rise or fall with the movement of the valve. The handwheel can be used with all Lohse valves and is made of aluminium as standard. If required, the handwheel is available in stainless steel. The use of a handwheel is recommended for sizes from DN50 up to and including DN300.
Handwheel drives with rising spindle (H)
The handwheel actuator with rising spindle (Type -H) is a handwheel in which the spindle rises or falls with the movement of the valve. Thus, one can visually detect whether the valve is open or closed. The handwheel can be used on all Lohse valves and is made of aluminium as standard. If required, the handwheel is available in stainless steel. The use of a handwheel is recommended for sizes from DN50 up to and including DN300.
Chain wheels (K)
The sprocket drive (type -K) is available for applications where the valve is placed high above a floor, but where an automatic operation is undesirable or unnecessary. The chain sprocket is suitable for a chain according to DIN 766A and is automatically fitted with a rising spindle for visual indication of the valve position. The length of the chain can be adjusted to the situation on site.
Handwheels with worm gearbox (GK)
The handwheel gearbox is used when the valve is so large that operating it with a standard handwheel is too heavy, awkward or time-consuming. This actuator is recommended from diameter DN350 and up. We supply cast iron worm gearboxes of the AUMA brand as standard to ensure the best quality.
Double-acting pneumatic cylinders (P/G)
Lohse double acting pneumatic cylinders (type -P/G) make it possible to fully automate a process. The pneumatics are produced in-house at Lohse so the customer gets a complete package which is tested and certified as one product. The pneumatics are equipped with a NAMUR interface according to VDE/VDI 3845 and with a T-slot for mounting magnetic sensors directly on the pneumatics. If required, we can deliver pneumatics with adjustable starting and end strokes.
Single-acting pneumatic cylinders (VMF)
Lohse single acting pneumatic cylinders (type -VMF) make it possible to fully automate a process. The pneumatics are produced in-house at Lohse, giving the customer a complete package, tested and certified as one product. The pneumatics are made of aluminium and equipped with a NAMUR interface according to VDE/VDI 3845. The single acting pneumatics are equipped with a spring to guarantee a fail safe function (fail to open or fail to close).
Electric actuators (E/G)
All Lohse valves are available with an electric actuator (type -E/G). We work together with AUMA as standard, but other manufacturers are available on request. Depending on local requirements, we can deliver a motor including or excluding control unit and with voltage 400VAC, 230VAC or 24VDC. For control valves, electric motors with adjustable operation are possible, with or without fail-safe function.
Square cams for square keys (X)
Lohse valves are available with square keys (type -X). This actuator is used in particular in water treatment. All valves can be equipped with a square cam in accordance with DIN 3223 C that can be operated with a DIN 3223 C key. If required, we can supply customised spindle extensions.
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